Uma ibanga lokudlulisela lide kakhulu (ngaphezu kwamakhilomitha ayi-100), isignali yokukhanya izoba nokulahlekelwa okukhulu. Esikhathini esidlule, abantu babevame ukusebenzisa ama-repeater optical ukukhulisa isignali yokukhanya. Lolu hlobo lwemishini lunemikhawulo ethile ekusetshenzisweni okusebenzayo. Ithathelwe indawo yi-optical fiber amplifier. Umgomo wokusebenza we-optical fiber amplifier uboniswe esithombeni esingezansi. Ingakhulisa ngqo isignali yokukhanya ngaphandle kokudlula enqubweni yokuguqulwa kwe-optical-electric-optical.
Isebenza kanjani i-fiber amplifier?
Uma ibanga lokudlulisela lide kakhulu (ngaphezu kwamakhilomitha ayi-100), isignali yokukhanya izoba nokulahlekelwa okukhulu. Esikhathini esidlule, abantu babevame ukusebenzisa ama-repeater optical ukukhulisa isignali yokukhanya. Lolu hlobo lwemishini lunemikhawulo ethile ekusetshenzisweni okusebenzayo. Ithathelwe indawo yi-optical fiber amplifier. Umgomo wokusebenza we-optical fiber amplifier uboniswe esithombeni esingezansi. Ingakhulisa ngqo isignali yokukhanya ngaphandle kokudlula enqubweni yokuguqulwa kwe-optical-electric-optical.
Yiziphi izinhlobo zama-fibre amplifier akhona?
1. I-amplifier yefayibha efakwe i-Erbium (EDFA)
I-Erbium-doped fiber amplifier (EDFA) yakhiwe kakhulu yi-erbium-doped fiber, umthombo wokukhanya wephampu, i-optical coupler, i-optical isolator, kanye nesihlungi se-optical. Phakathi kwazo, i-erbium-doped fiber iyingxenye ebalulekile yokukhulisa isignali ye-optical, esetshenziswa kakhulu ukufeza ukukhulisa isignali ye-optical ye-band engu-1550 nm, ngakho-ke, i-erbium-doped fiber amplifier (EDFA) isebenza kangcono ebangeni lamaza obubanzi obungu-1530 nm kuya ku-1565 nm.
Ainzuzo:
Ukusetshenziswa kwamandla aphezulu kakhulu kwephampu (ngaphezu kuka-50%)
Ingakhulisa ngqo futhi ngasikhathi sinye isignali yokukhanya ebhendini engu-1550 nm
Thola ngaphezu kwe-50 dB
Umsindo ophansi ekudlulisweni kwebanga elide
ukushiyeka
I-Erbium-doped fiber amplifier (EDFA) inkulu kakhulu
Lo mshini awukwazi ukusebenza ngokubambisana neminye imishini ye-semiconductor
2. Isikhulisi se-Raman
I-amplifier ye-Raman iyona kuphela idivayisi engakhulisa izimpawu ezibonakalayo kubhendi engu-1292 nm ~ 1660 nm. Isimiso sayo sokusebenza sisekelwe kumphumela wokuhlakazeka kwe-Raman ovuselelwe ku-fiber ye-quartz. Njengoba kuboniswe esithombeni esingezansi, lapho ukukhanya kwephampu kudonsa Lapho isignali yokukhanya ebuthakathaka ku-bandwidth yokuthola i-Mann kanye negagasi lokukhanya kwephampu elinamandla kudluliswa ngasikhathi sinye ku-fiber optical, isignali yokukhanya ebuthakathaka izokhuliswa ngenxa yomphumela wokuhlakazeka kwe-Raman.
Ainzuzo:
Uhla olubanzi lwamabhendi asebenzayo
Ingasetshenziswa ezinhlelweni zokusebenza zekhebula le-fiber yemodi eyodwa ezifakiwe
Ingangezelela ukuntuleka kwe-erbium-doped fiber amplifier (EDFA)
Ukusetshenziswa kwamandla okuphansi, ukukhuluma okuphansi
ukushiyeka:
Amandla aphezulu epompo
Uhlelo lokulawula inzuzo oluyinkimbinkimbi
Kunomsindo
3. I-amplifier yefayibha yokukhanya ye-semiconductor (i-SOA)
Ama-amplifier e-fiber optical semiconductor (SOA) asebenzisa izinto ze-semiconductor njenge-gain media, futhi okokufaka kwawo kwesignali ye-optical kanye nokuphuma kwawo kunezimbozo ezilwa nokukhanya ukuze kuvinjelwe ukukhanya ebusweni bokugcina be-amplifier futhi kuqedwe umphumela we-resonator.
Ainzuzo:
ivolumu encane
Amandla okukhipha aphansi
I-bandwidth yenzuzo incane, kodwa ingasetshenziswa kumabhendi amaningi ahlukene
Ishibhile kune-erbium-doped fiber amplifier (EDFA) futhi ingasetshenziswa nemishini ye-semiconductor
Imisebenzi emine engeyona eqondile yokuguqulwa kwe-cross-gain, ukuguqulwa kwe-cross-phase, ukuguqulwa kwe-wavelength kanye nokuxubana kwamagagasi amane kungafezeka
ukushiyeka:
Ukusebenza akuphezulu njenge-erbium-doped fiber amplifier (EDFA)
Umsindo ophezulu kanye nenzuzo ephansi
Isikhathi sokuthunyelwe: Septhemba 17-2021